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From 2709e2e76025aa69d768a80d66ef1852dde7abc8 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 21 Jul 2009 12:44:57 +0200
Subject: [PATCH] 052-touchscreen_filter.patch
---
drivers/input/touchscreen/Kconfig | 48 ++++++++++++++++++++++++++++++++++++
drivers/input/touchscreen/Makefile | 5 +++
2 files changed, 53 insertions(+), 0 deletions(-)
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 2bb711f..2b78885 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -11,6 +11,54 @@ menuconfig INPUT_TOUCHSCREEN
if INPUT_TOUCHSCREEN
+menuconfig TOUCHSCREEN_FILTER
+ boolean "Touchscreen Filtering"
+ depends on INPUT_TOUCHSCREEN
+ select TOUCHSCREEN_FILTER_GROUP
+ select TOUCHSCREEN_FILTER_MEDIAN
+ select TOUCHSCREEN_FILTER_MEAN
+ select TOUCHSCREEN_FILTER_LINEAR
+ help
+ Select this to include kernel touchscreen filter support. The filters
+ can be combined in any order in your machine init and the parameters
+ for them can also be set there.
+
+if TOUCHSCREEN_FILTER
+
+config TOUCHSCREEN_FILTER_GROUP
+ bool "Group Touchscreen Filter"
+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
+ default Y
+ help
+ Say Y here if you want to use the Group touchscreen filter, it
+ avoids using atypical samples.
+
+config TOUCHSCREEN_FILTER_MEDIAN
+ bool "Median Average Touchscreen Filter"
+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
+ default Y
+ help
+ Say Y here if you want to use the Median touchscreen filter, it's
+ highly effective if you data is noisy with occasional excursions.
+
+config TOUCHSCREEN_FILTER_MEAN
+ bool "Mean Average Touchscreen Filter"
+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
+ default Y
+ help
+ Say Y here if you want to use the Mean touchscreen filter, it
+ can further improve decent quality data by removing jitter
+
+config TOUCHSCREEN_FILTER_LINEAR
+ bool "Linear Touchscreen Filter"
+ depends on INPUT_TOUCHSCREEN && TOUCHSCREEN_FILTER
+ default Y
+ help
+ Say Y here if you want to use the Linear touchscreen filter, it
+ enables the use of calibration data for the touchscreen.
+
+endif
+
config TOUCHSCREEN_ADS7846
tristate "ADS7846/TSC2046 and ADS7843 based touchscreens"
depends on SPI_MASTER
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 269814c..538e035 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -41,3 +41,8 @@ obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o
obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o
obj-$(CONFIG_TOUCHSCREEN_W90X900) += w90p910_ts.o
obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
+obj-$(CONFIG_TOUCHSCREEN_FILTER) += ts_filter_chain.o
+obj-$(CONFIG_TOUCHSCREEN_FILTER_GROUP) += ts_filter_group.o
+obj-$(CONFIG_TOUCHSCREEN_FILTER_LINEAR) += ts_filter_linear.o
+obj-$(CONFIG_TOUCHSCREEN_FILTER_MEDIAN) += ts_filter_median.o
+obj-$(CONFIG_TOUCHSCREEN_FILTER_MEAN) += ts_filter_mean.o
--
1.5.6.5
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